The Cobbles topographic map

Average elevation: 2,051 ft

Average elevation: 1,273 ft

Because of their abrupt, hilly topography, pedestrian navigation in Upper Manhattan is facilitated by many step streets. The longest of these in Washington Heights, at approximately 130 stairs and with an elevation gain of approximately 65 feet, connects Fort Washington Avenue and Overlook Terrace at 187th…

Average elevation: 82 ft

New York's wilderness areas must be composed of 10,000 acres (4,000 ha; 40 km2) of contiguous land, twice the federal standard. Land is to be left as "untrammeled by man" and as close to its natural state as possible, offering outstanding opportunities for solitude. No artificially-powered devices are…

Average elevation: 1,644 ft

Average elevation: 213 ft

Average elevation: 430 ft

Average elevation: 597 ft

Average elevation: 1,588 ft

Average elevation: 610 ft

Only a small creek (Irondequoit Creek) flows in what is left of this large paleogeologic valley. The area of the lower river was also affected. Since the earth rebounded from the melting glaciers more rapidly in Canada than in New York, water from Lake Ontario was spilled over New York due to its lower…

Average elevation: 1,302 ft

Average elevation: 761 ft

Average elevation: 381 ft

Average elevation: 266 ft

Average elevation: 1,138 ft

Average elevation: 105 ft

Average elevation: 98 ft

Average elevation: 52 ft

Average elevation: 1,037 ft

Average elevation: 876 ft

Average elevation: 223 ft

The construction of the Erie Canal was a landmark civil engineering achievement in the early history of the United States. When built, the 363-mile (584 km) canal was the second-longest in the world (after the Grand Canal in China). Initially 40 feet (12 m) wide and 4 feet (1.2 m) deep, the canal was expanded…

Average elevation: 581 ft

Average elevation: 814 ft

Average elevation: 138 ft

Average elevation: 1,188 ft

Average elevation: 587 ft

Average elevation: 525 ft

Average elevation: 7 ft

Average elevation: 305 ft

Average elevation: 1,339 ft

Average elevation: 732 ft

Average elevation: 715 ft

Average elevation: 184 ft

Average elevation: 253 ft

In 1788 the township of Jerusalem, New York was founded by a Quaker Evangelist preacher, Jemima Wilkinson, who, after recovering from a near-death illness, referred to herself as the Public Universal Friend. Wilkinson, with a following of twenty-five other settlers, began to clear twenty-five acres of forest…

Average elevation: 1,250 ft

Average elevation: 1,486 ft

Average elevation: 95 ft

Average elevation: 92 ft

Average elevation: 351 ft

Average elevation: 866 ft

Average elevation: 528 ft

Average elevation: 774 ft

Average elevation: 453 ft

Average elevation: 1,696 ft

Average elevation: 919 ft

Average elevation: 1,024 ft

Average elevation: 1,496 ft

Average elevation: 840 ft

Average elevation: 1,296 ft

Average elevation: 1,850 ft

The escarpment features rocks of the Upper Silurian and Upper and Middle Ordovician ages resting below the Devonian rocks. At the base of the escarpment, the Schenectady beds are visible. The Rondout "waterlime" or dolomite overlies the Schenectady beds and is most pronounced below Minelot Falls. The…

Average elevation: 860 ft

Average elevation: 92 ft

Average elevation: 1,545 ft

Average elevation: 545 ft

Within its boundaries lie 10 of the 35 Catskill High Peaks, including the highest Catskill peak, Slide, 4,180 feet (1277 m) of elevation; and lowest, Rocky.

Average elevation: 1,916 ft

Average elevation: 433 ft

Average elevation: 1,302 ft

Average elevation: 1,818 ft

Average elevation: 489 ft

Average elevation: 1,184 ft

Average elevation: 1,417 ft

Average elevation: 840 ft

Average elevation: 407 ft

Average elevation: 604 ft

Average elevation: 1,260 ft

Average elevation: 1,352 ft

Average elevation: 1,060 ft

Average elevation: 1,001 ft

Average elevation: 1,512 ft

Average elevation: 1,526 ft

Average elevation: 1,814 ft

Average elevation: 830 ft

The topography is a result of the massive glaciation of the last ice age, and as such the soil is extremely rocky and the surface shows glacial erratic boulders. The glacial ice scraped off and carried with it rocks and minerals from as far north as Canada, depositing them in Nanuet in particular and southern…

Average elevation: 341 ft

Average elevation: 1,814 ft

Average elevation: 410 ft

Average elevation: 49 ft

Average elevation: 1,001 ft

Average elevation: 1,270 ft

Average elevation: 427 ft

Average elevation: 492 ft

Average elevation: 397 ft

Average elevation: 640 ft

Average elevation: 781 ft

Average elevation: 272 ft

Average elevation: 1,775 ft

Average elevation: 151 ft

Average elevation: 1,352 ft

Average elevation: 512 ft

Average elevation: 151 ft

Average elevation: 1,394 ft

Average elevation: 2,264 ft

Average elevation: 810 ft

Average elevation: 20 ft

Average elevation: 971 ft

Average elevation: 489 ft

Average elevation: 505 ft

Average elevation: 1,214 ft

Average elevation: 614 ft

Average elevation: 502 ft

Average elevation: 98 ft

Average elevation: 13 ft